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Gett1$r-Ryan/GeostMtgPe9(1) Project. TOW00) Reported <br /> 6747 Sierra Court,Suite 7 Project Number Tosco(Unocal)SS#6981 <br /> 07/12/0106 51 <br /> Dublin CA,94568 Project Ma-Fr Deanna Harding <br /> Volatile Organic 8 Oxygenated Compounds by EPA Method 8260B -Quality Control <br /> Sequoia Analytical- San Carlos <br /> RcpomB Spire Source <br /> EC RPD <br /> �e Result Limb Units Leval Result <br /> Y.REC I.uu>Ye RPD t.tmit Notes <br /> Batch 1070013-EPA 5030B PIT <br /> Blank(1070013-BLKI) Prepared Sc Analyzed 07/03/01 <br /> ND 1000 ugll <br /> Ethanol <br /> 1,2-Dibromoetlim AID 20 <br /> 1,2-Dichloroethane ND 20 " <br /> Di-isopropyl ether AID 20 " <br /> Ethyl tertbutyl ether ND 20 " <br /> Methyl tert butyl ether ND 20 " <br /> Tert-amyl methyl ether ND 20 " <br /> Tert-butyl alcohol ND 100 " <br /> 48 2 SO 0 964 76-114 <br /> Surrogate 1,1-Dichloroethane-l4 500 101 88-110 <br /> qLto Toluene-d8 50S " <br /> prepared&Analyzed 07/03/01 <br /> (1070013-BS1) 500 105 70-130 <br /> Methyl Cert-butyl ether 52 3 2 0 11911 <br /> 49 S Soo 990 76-114 <br /> Surrogate 1,2-Dichloroethmie-d4 " Soo 984 88-110 <br /> Surrogate Toluene-d8 492 <br /> Matrix Spike(1070013-M51) <br /> Source L106220-02 Prepared&Analysed 07/03/01 <br /> Methyl tert-butyl ether 453 20 ug/l 500 ND 906 60-140 <br /> 4b 0 Soo 910 76-114Surrogate 12-Dichloroethane-& " SO 0 97 4 88-110 <br /> Surrogate Toluene-d8 487 <br /> Source.LI D6220-02 Prepared&Analysed 07/03/01 <br /> Matrix Spike Du {1070013-MSD1} 2 0 ugll 500 ND 910 60-140 0441 25 <br /> Methyl tart-butyl ether 455 <br /> 46 7 50 0 93 4 76-114 <br /> Surrogate 1,2 Dichloroethane-d4 " 50 0 97 8 88-110 <br /> Surrogate Toluene-d8 489 <br /> Batch 1070022-EPA 5030B PIT <br /> Prpa <br /> Blank(1070422-BLKI) ered&Analyzed 07/05/01 <br /> ND 100D u9/1 <br /> Ethanol <br /> 1,2-Dibromoethme ND 20 " <br /> 1,2-1he1110roethaile ND 20 <br /> Di-isopropyl ether ND 20 " <br /> Ethyl tert-butyl ether ND 20 " <br /> Methyl tart-butyl ether ND 20 fl" <br /> Tert-amyl methyl ether ND 20 <br /> butyI alcohol ND 100 <br /> Sequoia Analytical-San Carlos The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document 77irs analytical report must be reproduced in its entirety <br /> Page 18 of 22 <br />